Properties of FeSe-type superconductors with ternary mixture of chalcogens / Abouhaswa A. S.,Merentsov A. I.,Selezneva N. V.,Baranov N. V. // PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS. - 2014. - V. 502, l. . - P. 10-13.

ISSN/EISSN:

0921-4534 / 1873-2143

Type:

Article

Abstract:

A series of Fe1.02Te0.5Se0.5-xSx (x = 0, 0.1, 0.2, 0.3, 0.4 and 0.5) samples has been synthesized by solid state reaction. Keeping the tellurium content unchanged the influence of the substitution of sulfur for selenium on the crystal structure and superconducting properties of synthesized samples has been studied by means of X-ray diffraction, electrical resistivity and magnetic susceptibility measurements. It has been found that the unit cell volume of the superconducting phase increases with increasing S concentration despite the lower ionic radius of sulfur in comparison with selenium. Together with expansion of the lattice the S for Se substitution is observed to reduce the T-c value in Fe-1.02(Te0.5Se0.5). (C) 2014 Elsevier B.V. All rights reserved.

Author keywords:

Superconductivity; Iron chalcogenides; Critical temperature; Electrical resistivity; Lattice parameters; Magnetization ALPHA-FESE; SUBSTITUTION; PRESSURE

DOI:

10.1016/j.physc.2014.04.005

Web of Science ID:

ISI:000336426300003

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL 15
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1873-2143
Keywords-Plus	ALPHA-FESE; SUBSTITUTION; PRESSURE
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	aliabohaswa@hotmail.com
ResearcherID-Numbers	Merentsov, Alexander/R-6275-2016 Baranov, Nikolai/J-5042-2013
ORCID-Numbers	Merentsov, Alexander/0000-0002-0005-2594 Baranov, Nikolai/0000-0002-9720-5314
Funding-Acknowledgement	Ural Federal University
Funding-Text	The investigation was carried out with the financial support of young scientists of Ural Federal University. The authors are thankful to Dr. A. S. Volegov for his assistance in measurements of the magnetic properties.
Number-of-Cited-References	26
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	79
Journal-ISO	Physica C
Doc-Delivery-Number	AH8ZE